Watch dizzying video of the top of 1 World Trade Center being installed

Video taken from the angle of the spire as it was installed atop 1 World Trade Center last week is breathtaking to watch. If you're afraid of heights, this may be hard to view.

Watch dizzying video of the top of 1 World Trade Center being installed

The spire that makes 1 World Trade Center the tallest building in the Western Hemisphere was installed Friday, and apparently, a video camera was attached to document the process.The New York Times sped up the original 9-minute video from the Port Authority of New York and New Jersey to create a cool, 69-second time lapse that shows the installation.